When you don’t have any authority, first you should have proper information on what is the difference between manipulation and influence?
Being a manipulator is not going to bring you what you want in life? It’s not going to bring you happiness.
Influence when we have a purpose of serving people making the world a better place. Influencing the world for good.
If you don’t have authority then when you talk to somebody, you don’t have any credibility. They don’t have any reason to believe you or to follow you, so why don’t you have any authority? Have you just not had enough time to prove yourself yet?
The biggest way that I found to build my influence is to build the track record of success over time, it takes time, and it took me a lot of time.
The second way of influence is to take action, if people are listening to you they are implementing it? Until they actually take action on.
You have to get authority by Confidence in yourself and success will automatically boast your confidence. Something that I want to emphasize here though is it will take time believe in yourself, and go forward and get to the point at the right place. Where people look at you, they follow your advice.